REM Usage: .\download.bat https://www.a.url/to/download filename_for_downloaded.file
REM Usage: .\download.bat https://www.a.url/to/download filename_for_downloaded.file a_username a_password
@echo off
set URL=%1
set FILENAME=%2

if NOT "%~3" == "" (
    set USERNAME=%3
    set PASSWORD=%4
    curl -L -o %FILENAME% -u %USERNAME%:%PASSWORD% %URL%
) else (
    curl -L -o %FILENAME% %URL%
)